The 37-year-old called time on a 13-year spell with the club after defeat to Real Sociedad confirmed their relegation, but says he will not hang up his boots
Saturday's 1-0 defeat to Real Sociedad consigned the club to life in the Segunda Division next season after winning promotion to the Spanish top tier in 2012.
The 37-year-old, who arrived at the Estadio Riazor in 2000, was joined by club officials as well as a number of team-mates at a press conference, where he fought back tears as he announced his exit, and expressed regret that his departure could not coincide with the club celebrating its survival.
"I think it is time to end my cycle in La Coruna. I am very upset by the situation after what has happened tonight," he said.
"I had hoped to do this in different circumstances, with top-flight status assured, but it wasn't to be. It's difficult to express my feelings.
"I hope in the future we will be able to cross paths again. I am not retiring, but we will see what happens in the coming weeks."
The former Spain international netted 24 times in 328 appearances during a 13-year spell at the Riazor.